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en-us_commands:reference:ictuddownstate

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IctudDownState()

IctudDownState() returns the lower-limit completion state of the Up/Down counter.

IctudDownState command operation flow

bool IctudDownState(uint8_t counter_id)

Commands

Command Arguments Return Value Operation
IctudDownState(counter_id) uint8_t counter_id — Counter number. Supports 0 ~ 255, the uint8_t range bool Returns the lower-limit completion state of the Up/Down counter.

Example

const uint8_t COUNTER_ID = 5;
const int32_t RACK_CAPACITY = 100;
 
void setup() {
  Serial.begin(115200);
}
 
void loop() {
  const bool entered = digitalRead(0) == HIGH;
  const bool exited = digitalRead(1) == HIGH;
  Ictud(COUNTER_ID, entered, exited, false, false, RACK_CAPACITY);  // Process up and down inputs with one counter.
  const bool rackEmpty = IctudDownState(COUNTER_ID);  // Return the up/down counter's lower-limit completion state.
  digitalWrite(33, rackEmpty ? HIGH : LOW);
}

Precautions

  • The previous fixed 0~31 restriction has been removed. However, the argument type is uint8_t, so the maximum ID is 255.
  • If insufficient memory prevents allocation of counter state, counter commands return false or 0.
  • Once created, counter state is retained while the program runs.

Built-in Commands in the Same Category

en-us_commands/reference/ictuddownstate.1788796399.txt.gz · Last modified: by 127.0.0.1

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